Home’s double boiled linseed oil contains linseed oil that has been gently boiled twice and does not contain any solvents or other additives. Linseed oil pressed from the seed of the flax plant has been used for centuries to protect and beautify wood. Double boiled linseed oil can be used as a finish or can be mixed with other varnishes or solvents to formulate custom finishes. Double boiled linseed oil can be used on food preparation surfaces and wood bowls, but Terra Nova NaturOil HH#454-8181 is recommended for cutting boards and butcher blocks.